matlab-guide

I have spent some time lately creating complex Matlab GUI tool. I'm using GUIDE GUI builder. I dislike the way Matlab manages global variables in code behind (the .m file with functions). If I want to share data between function calls I have to store them in handles structure that is given as a parameter to every function call. I consider it to be bug prone as I have to mind storing and updating handles all the time. It is rather unnatural for me to handle global variables this way. Using appdata is even worse. Is it possible to use class as a code behind for GUI? All the callbacks would be

I am trying to run a MATLAB GUI I have created. If I open the .fig file using GUIDE and press the run button there, it runs perfectly. However, when I double-click the .fig file in the 'Current Folder' section of MATLAB, it seems to be unable to find the handles variable. This causes it to give an error whenever handles is used. Why does this happen? Is there a fix/workaround? I'm using MATLAB R2011, but I've tried it on R2012 as well. The code runs fine, and displays the GUI fine, but the moment it encounters the handles variable, it gives the following error: Attempt to reference field of

I'm new to MATLAB and this website as well. I tried searching for this question, but to no avail (so I apologize if this ends up being a questions which has already been asked here before). In class, we were assigned a problem with the following description: "For an n-dimensional vector X, the function should return another 2n-dimension where each element is repeated twice. For example: if a=[2 3 4 5], after using the function, a=[2 2 3 3 4 4 5 5];" It should work with a vector of ANY random size. Your help is really appreciated! Thanks use kron : K = kron(X,Y) returns the Kronecker tensor

I have this code that crop the black borders in my picture. I don't know why the border still exists. I1=im2double(imread('dart.jpg')); sizeI = size(I1); zeros = floor((sizeI(2) - min(sum(any(I1))))/2); I2 = I1(:, zeros : sizeI(2)-zeros, :); nonZero = sum(any(I1,2)); sizeI2 = size(I2); zerosRows = floor((sizeI(1) - min(sum(any(I2, 2))))/2); I3 = I2(zerosRows : sizeI2(1)-zerosRows, :, :); subplot(1,3,1), imshow(I1);title('Figure 1'); subplot(1,3,2), imshow(I2);title('Figure 2'); subplot(1,3,3), imshow(I3);title('Figure 3'); How can I change this code ? This code works for me, assuming that your

I have created a MATLAB GUI using GUIDE. I have a slider with a callback function. I have noticed that this callback, which is supposed to execute 'on slider movement', in fact only runs once the slider has been moved and the mouse released. Is there a way to get a script to run as the slider is being dragged, for live updating of a plot? There would I presume need to be something to stop the script being run too many times. Even though the callback of the slider isn't being called as the mouse is moved, the 'Value' property of the slider uicontrol is being updated. Therefore, you could create

I'm working on a fairly sophisticated GUI program to be deployed with MATLAB Compiler. (There are good reasons MATLAB is being used to build this GUI, that is not the point of this question. I realize GUI-building is not a strong suit for this language.) There are quite a few ways to share data between functions in a GUI, or even pass data between GUIs within an application: setappdata/getappdata/_____appdata - associate arbitrary data to a handle guidata - typically used with GUIDE; "store[s] or retrieve[s] GUI data" to a structure of handles Apply a set/get operation to the UserData property

I need to create a GUI in MATLAB for my project. I looked everywhere for examples of how to program a GUI but I couldn't find a lot. What are some good sites or techniques for GUI programming in MATLAB? The first place you need to go is Matlab Help on Creating Graphical User Interfaces . Then, you can watch this tutorial video or this one This tutorial is also good. Here are all the videos that I have made about making MATLAB GUIs http://blogs.mathworks.com/videos/category/gui-or-guide/ I recently had to program a simple GUI that controls some plots. I don't know exactly what your task is, but